Heading south to warmer climes is a great way to beat snow, slush and wintertime blues, but it means you’ll likely have to rely on others for on-the-water fun in the sun, especially if you enjoy activities like parasailing. There are some parasailing safety items you should check before you go flying 500 or more feet in the sky, however, writes Mario Vittone in this week’s Lifelines: Safety And Rescue At Sea blog.